Planing device



7 May 6, 1924. 1,493,380

W. H. B. PERRY PLANING DEVICE Filed Marc 1y 28. 1922 2 Sheets-Sheet 1 F bag. 1.

WI T/VESSES May 6, 1924. 1,493,380

W. H. B. PERRY PLANING DEVICE Filed March 28. 1922 2 Sheets-Sheet 2 WITNESSES IIWEIVTOR :15 v WEB- Para I "M Q ATTORNEYS v Patented May 6, 1924.

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PLANING nnvron.

Application filed March 28, 1922. Serial No. 547,531.

T 0 all whom it'ma'g concern.

Be it known that I, WILLIAM H. B. PERRY,

a citizen of the United States, and a resident of l/Vaterbury, in the countyof Washin gton and State of Vermont, have invented a, new and Improved Planing Device, of which the "following is a full, clear, and exact description. i

. My invention relates to planing devices, and aims to provide a machine of this character, which is particularly adapted'for use in connection with the surfacing of'stone, rock, etc. i v

It is a well. appreciated fact that surfaces, formed by the cutting action of the saw, are rbugh and bear marks of the implement. Thus it is necessary for a workman to operate upon these surfaces by means of hand tools. so that the same will present a smooth and finished appearance. However. this latter operation is, at best, naturally slow and proportionately expensive, and the results obtained by the same are often far from satisfactory.

Thus it is an object of the present invention to provide a planing device on a machine, which will permit an operator to surface the faces of a rock or similar substance in a minimum amount of time.

A further object of this invention is that of providing a device of the character stated, in which the results achieved will be extremely satisfactory, aside from the fact that a planing device of my improved type is of relatively simple construction, and, hence, not readily susceptible to being damaged.

A further object of this invention will become apparent in the annexed specification taken in connection with the drawings, which latter present practical embodiments of the same, and in which Figure 1 is a side elevation of a planing device embodying my improved construction and showing certain of the exterior parts broken away to disclose the underlying construction.

Figure 2 is an end view of the same.

Figures 3, 4 and 5 are side, plan and end views respectively of a different type of planing shoe, from that shown in Figures 1 and 2.

Figures 6 and 7 are side and plan views respectively of another type of shoe.

The essence of my invention consists in the provision of a planing device which is motor driven, and which provides contact surfaces adapted to engage the face of the material to be surfaced, in such a manner that most satisfactory results will be achieved. Y

Thus, as in Figures 1 and 2, it will be rate of speed by any suitable means (not shown).

The device proper may embody numerous different forms, but in the embodiments illustrated it will be noted that the same embraces a drum-shaped body includingspaced side walls 11 and the-body extending between these side walls, this body being composed of a plurality of contact shoes, hereinafter described, and inserts 12 filling the spaces existent between the contact shoes. 1

It will be noted, attention being invited to Figure 1, that the drum houses a series of radially extending arms, each having coils of wire dlsposed around its body to provide a. plurality ofsolenoids 13, which.

terminate adjacent the outer face of the drum. Suitably secured, one to each of the outer ends of the solenoid, are contact shoes, and reference being had to Figures 1 and 2, it will be noted that these contact shoes each include. a pluralityof outwardly extending ribs 14 arranged parallel to the side walls 11, and, as has been clearly brought out in Figure 2, the ribs on adjacent shoes are arranged in staggered relationship with respect to each other, sothat as the drum is revolved and held in contact with a surface to be operated upon, this surface will be engaged by the ribs over the entire width of the drum. Also with a view of providing extremely rigid and interlocking construction which will prevent the entrance of any rock dust, it will be noted in the broken portion of Figurel that the inserts 12 have their end edges bevelled to conform to the end edges of the contact shoes, and the center portion of each of these inserts is extended, as has been indicated at 15,'soas to project between the edges of these contact shoes, the ends of this extended portion terminating in projecting parts 16 engaging against the under side of adjacent shoes, so that any movement of the parts or entrance of foreign matter between the same, is virtually precluded.

Now with a view of providing an abrasive wheel serving to permit of quick results being obtained, it will be noted that I preferably employ, as inFigure 1, particles of steel 17, and by arranging each of the windings of the solenoids 13 in series with each other and extending the end wires 18 thereof to contact rings 19, it will be obvious, assuming that current is fed into these contact rings, that the steel particles 17 will be attracted to and retained upon the outer faces of the contact shoes.

In operation, the current may be fed to the contact rings by any suitable means, such as wheel brushes 20, and the steel particles 17 are fed under the device as the same is rapidly rotated by means of the shaft 10. Due to the attraction exerted upon the particles by means of the solenoids, it will be obvious that but a fraction of the same will be thrown clear of the device upon the latter being revolved, and thus these particles will act as an abrasive substance to eifect a rapid wearing down of the surface of the slab 21, and due to the fact that the ribs upon the contact shoes are disposed in staggered relationship to each other, these ribs will effect a complete contact with the entire surface over which the device moved.

It will be obvious that numerous types of contact shoes mightbe employed, such as for instance, that of the character shown in Figures 6 and 7, it being noted that in this instance the same embraces a body portion 22 and ribs 23, each of which are arranged at an angle to the side edges of the body portion, although parallel to each other. In this instance it will also be appreciated that the entire surface over which the device is moved, will be operated upon during each partial revolution of the device, thus accomplishing the results desired. In the type of shoe shown in Figures 3, 4 and 5, a body 24 is provided, which body presents ribs 25 extending transversely to its outer surface and to the side walls 11 of the body of the device.

It will thus be understood that in this A instance a quite pronounced scraping action is achieved, and from the foregoing it Will be appreciated that all of the objects of this invention have been accomplished and it will be understood that numerous modifications of structure might readily be resorted to without in the least departing from the scope of my claim, which is:

In a stone cutting mechanism, a shaft,

WILLIAM HENRY BENNETT PERRY. 

